Howdy! I noticed that
racer doesn't seem to build with the stable Rust release. I'm not very interested in running nightly as such (I don't want to use any cutting edge features) but I do want to have advanced IDE features in my editor. Do I simply have to bite the bullet and switch to nightly if I want to use racer?
Howdy! I noticed that
Alternatively you can use the rust language server, as far as I remember it's stable since 1.30ish.
It seems to use racer as a dependency.
Does adding the RLS as a component via rustup fail with an error?
Anyway, you can compile racer with nightly and still use it for stable and beta projects.
Excellent to hear I can compile racer with nightly and still use the stable toolchain! Please tell me how to build racer using nightly and then have it around for stable/beta. I have no idea what I'm doing.
How are you attempting to install it? If you're using
rustup the following command should work with stable rust:
rustup component add rls rust-analysis rust-src
It doesn't seem like there's a documented way of doing this without rustup, it may require manually compiling it with nightly.
Answering my own question, after much experimentation:
rustup allows you to install more than one toolchain, and to switch easily between them. The correct method, presuming one already has
stable installed, is:
rustup toolchain install nightly rustup default nightly cargo install racer rustup default stable
This will, in sequence, install the
nightly toolchain, switch to it, install racer, and then switch back to stable.
Edited to add:
As @Hyeonu explains below, you can also build off a non-default toolchain. So an even simpler solution (assuming you are on
rustup toolchain install nightly cargo +nightly install
cargo to build using the
nightly toolchain without needing to switch to it.
cargo +nightly install racer to achieve same result.
Thank you! I knew that there had to be a better way!! Does that require that
nightly already be installed?
I believe so, but nightlies always installed in my machine so I can't be sure though
BTW, thanks so much for your answer! You understood what I was asking and gave me clear instructions, which is really helpful for a newcomer.
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